If your phone connects to your car and phone calls come through the speakers but music doesn’t, the connection itself is fine. Bluetooth sends calls and music over two separate channels, and one of them, the music channel, is switched off, blocked, or not supported. That’s why the car shows “connected” and yet plays nothing. The fix is to find which of five things is blocking that channel, and they’re worth checking in the order below because the first two take under a minute.
First Do the 30-Second Test
Play a video on your phone with the sound up, then make a short call to someone. If the call plays through the car and the video doesn’t, you have the exact problem this article covers: the call channel works and the music channel doesn’t. If neither plays through the car, the connection itself is the issue, and starting over with a fresh pairing (check 4 below) is your best move.
If you’re not sure the phone is even sending audio to the car, turn Bluetooth off for ten seconds and confirm the phone’s own speaker plays the video. That rules out a silent phone before you blame the car.
Check 1: The Media Audio Switch on Your Phone
On Android, open the settings for the car’s Bluetooth connection and look for two switches: one for phone calls and one for media audio. Google’s Bluetooth help page tells you to tap the settings icon next to your car in the saved devices list and turn on Media audio, and to turn on Phone audio for calls. If Media audio is off, calls will work and music won’t, which matches your symptom exactly.
iPhone doesn’t show a per-device media switch the same way. Instead, play something and open the audio output picker in Control Center, then choose your car from the list. If the car isn’t there or isn’t selected, the phone is playing through its own speaker.
Check 2: Volume and Source
Bluetooth music has its own volume on the phone, separate from call volume. Turn the phone’s media volume up while a song is playing, then check the car’s volume knob. A phone with media volume at zero looks exactly like a car that isn’t playing audio.
Also check the car’s input source. Many cars need to be switched to a Bluetooth Audio or Phone Audio source to play music, and may sit on the radio, USB, or an AUX input instead. Look through the car’s audio source menu for the Bluetooth option.
Check 3: Is Something Else Holding the Audio?
A second paired device, such as earbuds in your pocket, a watch, or a speaker at home, can grab the audio output. Google’s guidance for car Bluetooth problems includes confirming that no other paired device is playing the audio. Turn Bluetooth off on your other devices, or switch them off, and test again. This is the same ghost routing that silences the earpiece during calls.
Check 4: Forget the Car and Pair Again, on Both Sides
If the switches are on and the volume is up, pairings can break in a way that keeps calls working. Delete the car from your phone’s saved Bluetooth devices, delete your phone from the car’s own list of paired devices, and pair again from scratch, using the car’s manual if the menus are unclear. Doing only one side often leaves the old record in place on the other, which defeats the reset. When you pair again, accept every permission prompt, because declining a music or media permission can leave music blocked while calls still work.
Check 5: Does the Car Support Bluetooth Music at All?
Not every car does. Google’s page notes that not all cars support Bluetooth music, and not all support Bluetooth calls either. Older car stereos, and some basic aftermarket units, were built to do hands-free calling only. If the car’s manual lists “hands-free” but not “audio streaming” or “A2DP,” then the answer is in the manual, not in your phone. A cheap Bluetooth adapter plugged into the car’s AUX input, or a different head unit, is the usual fix.
If It Still Doesn’t Work
If a different phone plays music fine through the same car, the problem is in your phone’s settings or pairing. If a different phone has the same issue, look at the car’s settings or software, and check whether the manufacturer has an update. If calls themselves start dropping or going quiet on top of the music problem, the call-audio checklist may help narrow it down. And if you use your phone’s navigation in the car, it’s worth reading why the phone can lose battery while charging in the car, since a long drive with music, maps and Bluetooth all running can run it down faster than you expect.
FAQ
Why do phone calls work through my car Bluetooth but not music?
Bluetooth uses separate channels for calls and music. If the music channel is turned off on the phone, set to a different source on the car, held by another paired device, or not supported by the car, calls can work while music stays silent.
Where is the Media audio setting on Android?
Open Settings, go to Connected devices, then Saved devices, and tap the settings icon next to your car. Turn on Media audio for music and Phone audio for calls.
How do I fix car Bluetooth connected but no sound?
Check the phone’s media volume, make sure the car is set to its Bluetooth audio source, turn off other paired devices, and then forget the car on both the phone and the car’s list and pair again.
Can a car be too old to play music over Bluetooth?
Yes. Some older or basic car stereos support hands-free calling only and can’t stream music. Check the manual for audio streaming or A2DP, or use a Bluetooth adapter on the car’s AUX input.
Does the music app matter?
Sometimes a single app is the problem. Try a video or a different music app. If one app plays and another doesn’t, the problem is the app’s own audio settings, not the Bluetooth connection.